Cubing

cubing is a clean, professional Rubik's-cube timer and dan-grading tool — whether you're a beginner or chasing sub-10, track your progress and level up. KEY FEATURES • Pro timer: hold-to-charge start, tap to stop; WCA 15s inspection, +2 / DNF penalties, automatic ao5 / ao12. • WCA-style random-state scrambles with a 3D scramble diagram. • Dan grading: a 5-tier ladder (Beginner E → Advanced D → Expert C → Professional B → Master A). A full-screen landscape grading mode — scramble first, tap to start, 15s inspection with beeps, dual-pad red to green start, slap to stop; 5 solves form your ao5, pass to earn an e-certificate and rank up. Retake any dan anytime. • Skill training: PLL (all 21) / OLL / F2L library — view algorithms, mark "mastered"; recognition drills with timing, reveal and accuracy stats. • Records: single / ao5 / ao12 personal bests, a 14-day trend chart and full history. • Bilingual (Chinese / English), dark UI. PRIVACY All your results, dans and settings are stored locally on your device and work offline. Your phone number is used only to create a local account (shown as the last 4 digits), is never uploaded, and is not used for any advertising tracking. Start now and log your first solve!